Anyhow(JSON error: expected value at line 1 column 1, please double check your session and csrf config.)

[luciusluo]

So i have the latest csrf and lession configured to leetcode.toml, and I was running automated submission to leetcode using "leetcode exec $qid", for after about 30 mins, all my submission was getting the above error message.

Would be nice if i can be explained to why the above error keeps happening. My guess is the anti-scrape policy from leetcode.com?

[zodman]

Thats happend to me but when my application has recursion.

But just the plain works ..

[summelon]

Seems certain patterns of code trigger this error. Perhaps some parsing issue in Rust? @clearloop Could you help have a look on this?

[clearloop]

looks like we failed to decode sort types, could you please try running the command with debug flag? it's possible that it is caused by bad network as well

[summelon]

Answer resulted in JSON error:

class Solution:
    def minPathSum(self, grid: List[List[int]]) -> int:
        m, n = len(grid), len(grid[0])

        @lru_cache(None)
        def best(r, c):
            if r == m - 1 and c == n - 1:
                return grid[r][c]
            down = best(r + 1, c) if r + 1 < m else float('inf')
            right = best(r, c + 1) if c + 1 < n else float('inf')
            return grid[r][c] + min(down, right)

        return best(0, 0)

Logging:

[2025-07-31T02:42:04Z INFO  leetcode_cli::plugins::leetcode] Sending code to judge...
[2025-07-31T02:42:04Z DEBUG reqwest::connect] starting new connection: https://leetcode.com/
[2025-07-31T02:42:04Z DEBUG reqwest::connect] proxy(myproxy) intercepts 'https://leetcode.com/'
Anyhow(JSON error: expected value at line 1 column 1, please double check your session and csrf config.)

Simple test without error:

class Solution:
    def minPathSum(self, grid: List[List[int]]) -> int:
        return 1

Logging:

[2025-07-31T02:43:55Z INFO  leetcode_cli::plugins::leetcode] Sending code to judge...
[2025-07-31T02:43:55Z DEBUG reqwest::connect] starting new connection: https://leetcode.com/
[2025-07-31T02:43:55Z DEBUG reqwest::connect] proxy(myproxy) intercepts 'https://leetcode.com/'
[2025-07-31T02:43:58Z DEBUG leetcode_cli::cache::models] VerifyResult {
        state: "SUCCESS",
        name: "Minimum Path Sum",
        data_input: "[[1,3,1],[1,5,1],[4,2,1]]\n[[1,2,3],[4,5,6]]",
        result_type: Test,
        pretty_lang: "Python3",
        correct_answer: false,
        code_answer: [
            "1",
            "1",
            "",
        ],
        code_output: [],
        expected_output: [],
        std_output: [],
        status: VerifyStatus {
            status_code: 10,
            status_msg: "Accepted",
            status_memory: "17.6 MB",
            status_runtime: "0 ms",
            runtime_error: "",
        },
        analyse: Analyse {
            total_correct: Some(
                Number(0),
            ),
            total_testcases: Some(
                Number(2),
            ),
            runtime_percentile: None,
            memory_percentile: None,
        },
        expected: Expected {
            expected_code_answer: [
                "7",
                "12",
                "",
            ],
        },
        error: CompileError {
            full_compile_error: "",
        },
        submit: Submit {
            question_id: "",
            last_testcase: "",
            compare_result: "00",
        },
    }

Wrong Answer   Runtime: 0 ms

Your input:    [[1,3,1],[1,5,1],[4,2,1]]↩ [[1,2,3],[4,5,6]]
Output:        1↩ 1↩
Expected:      7↩ 12↩

[clearloop]

thanks @summelon ! looks like we missed the debugging log of the root case, I'll replace the current error messages with more detailed context later today