houshunwei edited a comment on issue #1833:
URL:
https://github.com/apache/incubator-apisix/issues/1833#issuecomment-657432792
I have resolved this problem:
First Try: extend proxy-rewrite(add grpc and grpcs scheme) and change apisix
bin file:
```
location @grpc_pass {
set $upstream_scheme 'grpc';
access_by_lua_block {
apisix.grpc_access_phase()
}
grpc_set_header Content-Type application/grpc;
grpc_socket_keepalive on;
grpc_pass $upstream_scheme://apisix_backend;
...
```
Problem: `grpc_pass` is different form `proxy_pass`, it cannot accept
variable( which you defined by `set`).
Result: `Failed`.
Second Try：add other block in apisix bin file. and change jugement in
init.lua
```
location @grpc_pass_ssl {
access_by_lua_block {
apisix.grpc_access_phase()
}
grpc_set_header Content-Type application/grpc;
grpc_socket_keepalive on;
grpc_pass grpcs://apisix_backend;
...
```
Result: It works!
I will close this issue now.
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