A bit of API documentation (#1914)

https://github.com/FreshRSS/FreshRSS/issues/1754

7 files changed, 81 insertions, 8 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 933c831c6..39bf723d5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -25,7 +25,7 @@
 	* Fix Docker bug affecting Apache `CustomLog` (unwanted local copy of access logs), `ErrorLog`, `Listen` (IPv6 bug) [#1873](https://github.com/FreshRSS/FreshRSS/pull/1873)
 	* Fix muted feeds that were not actually muted [#1844](https://github.com/FreshRSS/FreshRSS/issues/1844)
 	* Fix null exception in shares, showing only the first article [#1824](https://github.com/FreshRSS/FreshRSS/issues/1824)
-	* Fix error during import[#1890](https://github.com/FreshRSS/FreshRSS/issues/1890)
+	* Fix error during import [#1890](https://github.com/FreshRSS/FreshRSS/issues/1890)
 		* Fix additional automatic sequence bug with PostgreSQL [#1907](https://github.com/FreshRSS/FreshRSS/pull/1907)
 	* Fix errors in case of empty/wrong username when updating user settings [#1857](https://github.com/FreshRSS/FreshRSS/pull/1857)
 	* Fixes in subscription menu [#1858](https://github.com/FreshRSS/FreshRSS/pull/1858)
diff --git a/README.fr.md b/README.fr.md
index 2cdab269b..78a182d7b 100644
--- a/README.fr.md
+++ b/README.fr.md
@@ -186,10 +186,10 @@ Voir notre [documentation sur l’API Fever](https://freshrss.github.io/FreshRSS
 Tout client supportant une API de type Fever ; Sélection :
 
 * iOS
-	* [Fiery Feeds](https://itunes.apple.com/app/fiery-feeds-rss-reader/id1158763303)
-	* [Unread](https://itunes.apple.com/app/unread-rss-reader/id1252376153)
+	* [Fiery Feeds](https://itunes.apple.com/app/fiery-feeds-rss-reader/id1158763303) (Propriétaire)
+	* [Unread](https://itunes.apple.com/app/unread-rss-reader/id1252376153) (Propriétaire)
 * MacOS
-	* [Readkit](https://itunes.apple.com/app/readkit/id588726889)
+	* [Readkit](https://itunes.apple.com/app/readkit/id588726889) (Propriétaire)
 
 
 # Bibliothèques incluses
diff --git a/README.md b/README.md
index 75136e5e7..7d6c51338 100644
--- a/README.md
+++ b/README.md
@@ -186,10 +186,10 @@ See our [Fever API documentation](https://freshrss.github.io/FreshRSS/en/users/0
 Supported clients are:
 
 * iOS
-	* [Fiery Feeds](https://itunes.apple.com/app/fiery-feeds-rss-reader/id1158763303)
-	* [Unread](https://itunes.apple.com/app/unread-rss-reader/id1252376153)
+	* [Fiery Feeds](https://itunes.apple.com/app/fiery-feeds-rss-reader/id1158763303) (Closed source)
+	* [Unread](https://itunes.apple.com/app/unread-rss-reader/id1252376153) (Closed source)
 * MacOS
-	* [Readkit](https://itunes.apple.com/app/readkit/id588726889)
+	* [Readkit](https://itunes.apple.com/app/readkit/id588726889) (Closed source)
 
 
 # Included libraries
diff --git a/docs/en/users/06_Fever_API.md b/docs/en/users/06_Fever_API.md
index 58e986a64..6d8a103b9 100644
--- a/docs/en/users/06_Fever_API.md
+++ b/docs/en/users/06_Fever_API.md
@@ -1,5 +1,8 @@
 # FreshRSS - Fever API implementation
 
+See the [page about our Google Reader compatible API](06_Mobile_access.md) for another possibility
+and general aspects of API access.
+
 ## RSS clients
 
 There are many RSS clients existing supporting Fever APIs but they seem to understand the Fever API a bit differently.
diff --git a/docs/en/users/06_Mobile_access.md b/docs/en/users/06_Mobile_access.md
index 166985585..c354f98f0 100644
--- a/docs/en/users/06_Mobile_access.md
+++ b/docs/en/users/06_Mobile_access.md
@@ -7,6 +7,9 @@ This page assumes you have completed the [server setup](../admins/02_Installatio
 	* Every user must define an API password.
 	* The reason for an API-specific password is that it may be used in less safe situations than the main password, and does not grant access to as many things.
 
+The rest of this page is about the Google Reader compatible API.
+See the [page about the Fever compatible API](06_Fever_API.md) for another possibility.
+
 
 # Testing
 
@@ -50,3 +53,34 @@ This page assumes you have completed the [server setup](../admins/02_Installatio
 		* [EasyRSS](https://github.com/Alkarex/EasyRSS) (Open source, [F-Droid](https://f-droid.org/packages/org.freshrss.easyrss/))
 	* Linux
 		* [FeedReader 2.0+](https://jangernert.github.io/FeedReader/) (Open source)
+
+
+# Google Reader compatible API
+
+Examples of basic queries:
+
+```sh
+# Initial login, using API password (Email and Passwd can be given either as GET, or POST - better)
+curl 'https://freshrss.example.net/api/greader.php/accounts/ClientLogin?Email=alice&Passwd=Abcdef123456'
+SID=alice/8e6845e089457af25303abc6f53356eb60bdb5f8
+Auth=alice/8e6845e089457af25303abc6f53356eb60bdb5f8
+
+# Examples of read-only requests
+curl -s -H "Authorization:GoogleLogin auth=alice/8e6845e089457af25303abc6f53356eb60bdb5f8" \
+  'https://freshrss.example.net/api/greader.php/reader/api/0/subscription/list?output=json'
+
+curl -s -H "Authorization:GoogleLogin auth=alice/8e6845e089457af25303abc6f53356eb60bdb5f8" \
+  'https://freshrss.example.net/api/greader.php/reader/api/0/unread-count?output=json'
+
+curl -s -H "Authorization:GoogleLogin auth=alice/8e6845e089457af25303abc6f53356eb60bdb5f8" \
+  'https://freshrss.example.net/api/greader.php/reader/api/0/tag/list?output=json'
+
+# Retrieve a token for requests making modifications
+curl -H "Authorization:GoogleLogin auth=alice/8e6845e089457af25303abc6f53356eb60bdb5f8" \
+  'https://freshrss.example.net/api/greader.php/reader/api/0/token'
+8e6845e089457af25303abc6f53356eb60bdb5f8ZZZZZZZZZZZZZZZZZ
+
+# Get articles, piped to jq for easier JSON reading
+curl -s -H "Authorization:GoogleLogin auth=alice/8e6845e089457af25303abc6f53356eb60bdb5f8" \
+  'https://freshrss.example.net/api/greader.php/reader/api/0/stream/contents/reading-list' | jq .
+```
diff --git a/docs/fr/users/06_Fever_API.md b/docs/fr/users/06_Fever_API.md
index f9dcd5d73..6ad817041 100644
--- a/docs/fr/users/06_Fever_API.md
+++ b/docs/fr/users/06_Fever_API.md
@@ -1,5 +1,7 @@
 # FreshRSS - API compatible Fever
 
+Voir la page [sur notre API compatible Google Reader](06_Mobile_access.md) pour une autre possibilité
+et des généralités sur l’accès par API.
 
 ## Compatibilité
 
diff --git a/docs/fr/users/06_Mobile_access.md b/docs/fr/users/06_Mobile_access.md
index 8ef3d038a..b8e7c31f0 100644
--- a/docs/fr/users/06_Mobile_access.md
+++ b/docs/fr/users/06_Mobile_access.md
@@ -7,6 +7,9 @@ Cette page suppose que vous avez fini [l’installation du serveur](01_Installat
 	* Chaque utilisateur doit choisir son mot de passe API.
 	* La raison d’être d’un mot de passe API différent du mot de passe principal est que le mot de passe API est potentiellement utilisé de manière moins sûre, mais il permet aussi moins de choses.
 
+Le reste de cette page concerne l’API compatible Google Reader.
+Voir la [page sur l’API compatible Fever](06_Fever_API.md) pour une autre possibilité.
+
 
 # Tester
 
@@ -17,7 +20,7 @@ Cette page suppose que vous avez fini [l’installation du serveur](01_Installat
 	* Si vous obtenez un autre message d’erreur, passer à l’étape 5.
 
 
-# Débogger la configuration du serveur
+# Déboguer la configuration du serveur
 
 5. Cliquer sur le second lien “Check partial server configuration (without `%2F` support)”:
 	* Si vous obtenez `PASS`, alors le problème est bien que votre serveur n’accepte pas les slashs `/` qui sont encodés `%2F`.
@@ -48,3 +51,34 @@ Tout client supportant une API de type Google Reader. Sélection :
 	* [EasyRSS](https://github.com/Alkarex/EasyRSS) (Libre, F-Droid)
 * Linux
 	* [FeedReader 2.0+](https://jangernert.github.io/FeedReader/) (Libre)
+
+
+# API compatible Google Reader
+
+Exemples de requêtes simples:
+
+```sh
+# Authentification utilisant le mot de passe API (Email et Passwd peuvent être passés en GET, ou POST - mieux)
+curl 'https://freshrss.example.net/api/greader.php/accounts/ClientLogin?Email=alice&Passwd=Abcdef123456'
+SID=alice/8e6845e089457af25303abc6f53356eb60bdb5f8
+Auth=alice/8e6845e089457af25303abc6f53356eb60bdb5f8
+
+# Exemples de requêtes en lecture
+curl -s -H "Authorization:GoogleLogin auth=alice/8e6845e089457af25303abc6f53356eb60bdb5f8" \
+  'https://freshrss.example.net/api/greader.php/reader/api/0/subscription/list?output=json'
+
+curl -s -H "Authorization:GoogleLogin auth=alice/8e6845e089457af25303abc6f53356eb60bdb5f8" \
+  'https://freshrss.example.net/api/greader.php/reader/api/0/unread-count?output=json'
+
+curl -s -H "Authorization:GoogleLogin auth=alice/8e6845e089457af25303abc6f53356eb60bdb5f8" \
+  'https://freshrss.example.net/api/greader.php/reader/api/0/tag/list?output=json'
+
+# Demande de jeton pour faire de requêtes de modification
+curl -H "Authorization:GoogleLogin auth=alice/8e6845e089457af25303abc6f53356eb60bdb5f8" \
+  'https://freshrss.example.net/api/greader.php/reader/api/0/token'
+8e6845e089457af25303abc6f53356eb60bdb5f8ZZZZZZZZZZZZZZZZZ
+
+# Récupère les articles, envoyés à jq pour une lecture JSON plus facile
+curl -s -H "Authorization:GoogleLogin auth=alice/8e6845e089457af25303abc6f53356eb60bdb5f8" \
+  'https://freshrss.example.net/api/greader.php/reader/api/0/stream/contents/reading-list' | jq .
+```