feat: dload full playlist

spotify/get-tokens.sh

@@ -1,15 +1,14 @@
 #!/usr/bin/env bash
 set -eu
 
-PLAYLIST_ID="2BoXyJeV0fhEHOy4uiByxr"
-
 BEARER_TOKEN_RES=$(
-  curl -L https://open.spotify.com/playlist/"$PLAYLIST_ID" \
+  curl -L https://open.spotify.com/ \
     | grep 'id="session"' \
     | sed 's&.*<script id="session"[^>]*>&&' \
     | sed 's/<.*//'
 )
 BEARER_TOKEN=$(echo "$BEARER_TOKEN_RES" | jq -r .accessToken)
+export BEARER_TOKEN
 
 GUEST_TOKEN_RES=$(
   curl -X POST https://clienttoken.spotify.com/v1/clienttoken \
@@ -23,10 +22,4 @@ if ! [[ "$(echo "$GUEST_TOKEN_RES" | jq -r .response_type)" == "RESPONSE_GRANTED
 fi
 
 TOKEN=$(echo "$GUEST_TOKEN_RES" | jq -r .granted_token.token)
-echo "got bearer token $BEARER_TOKEN" >&2
+export TOKEN
-echo "got token $TOKEN" >&2
-
-curl --request GET \
-  --url https://api.spotify.com/v1/playlists/"$PLAYLIST_ID"/tracks \
-  --header 'Authorization: Bearer '"$BEARER_TOKEN" \
-  --header 'client-token: '"$TOKEN" | jq > playlist.json

spotify/update-playlist.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+set -eu
+
+MYSELF=$(realpath "$0")
+MYDIR=$(dirname "$MYSELF")
+. "$MYDIR"/get-tokens.sh
+
+PLAYLIST_ID="2BoXyJeV0fhEHOy4uiByxr"
+
+i=0
+iter_url=https://api.spotify.com/v1/playlists/$PLAYLIST_ID/tracks
+while :; do
+  RES=$(curl --request GET \
+    --url "$iter_url" \
+    --header 'Authorization: Bearer '"$BEARER_TOKEN" \
+    --header 'client-token: '"$TOKEN" 2> /dev/null)
+
+  iter_url=$(jq -r .next <<< "$RES")
+  echo "$RES"
+
+  i=$((i+1))
+  [[ "$iter_url" == "null" ]] && break
+done \
+  | pv \
+  | jq .items \
+  | jq -s 'reduce .[] as $x ([]; . + $x)' \
+  | jq 'del(.. | .available_markets?, .added_by?)' > playlist.json
+
+printf "downloaded %s songs metadata" "$(jq length playlist.json)"